Sin(phi) azimuthal asymmetry in semi-inclusive electroproduction on longitudinally polarized nucleon
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We investigate the $sin ϕ$ azimuthal asymmetry in the semi-inclusive deep-inelastic lepton scattering off longitudinally polarized nucleon target arising from the time reversal odd structures. The order 1/Q contributions of the leading twist and twist-three distribution and fragmentation functions to that asymmetry for the certain kinematical conditions are numerically estimated.
9 pages, Revtex, 4 Postscript figures
9 pages, Revtex, 4 Postscript figures